What does 840 mean on a fluorescent tube?
The first digit is the CRI with 8 representing 80% and 6 representing 60% etc. The last 2 digits are the colour temperature in hundreds of Kelvin so 6000K would be represented by 60. So for example 840 means the lamp has a CRI of 80% and a colour temperature of 4000K.
How many lumens is a 18w fluorescent tube?
1350 lumens
The 18w T8 Fluorescent tube boasts a lumen output of 1350 lumens and a 15,000 hour average lamp life.
What are the standard sizes of fluorescent tubes?
Fluorescent circline tubes are typically 1 and 1/8 of an inch in diameter. Their outside diameter (which is measuring the circle from one end to the other) comes in four options – 6, 8, 12, and 16 inches.
Are fluorescent tubes still available?
It was a combination of the impending restrictions, increased energy efficiency awareness, and emerging rebate programs targeting those with traditional T12 fluorescent tubes. High-output and high-CRI T12s are still manufactured today, but production is down.
Is the 840 warm white?
However, white can vary from a very warm white to a cool daylight, depending on the temperature of the lamp….What colour temperature should i choose for my lamp?
| Code | 840 |
|---|---|
| Colour Temperature (in Kelvin) | 4000K |
| Description | Cool white |
| Colour Appearance | More clinical feel |
Is G13 same as T8?
A T8 tube is also called a TL-D tube from Philips and a Lumilux tube from Osram. You can recognize a T8 tube from it’s 28mm diameter. The socket is called G13 this because the 2 pins are 13mm apart from each other. .
What does 10 lumens mean?
A lumen measures the amount of light that comes from a bulb. It refers to a light bulb’s brightness, intensity of light and visible light emitted. A standard 40-watt (40W) bulb is equal to 400+ lumens. Typically, the higher the wattage, the higher the lumens, and the more light output.
Can I replace fluorescent tubes with LED tubes?
Yes, you can replace fluorescent tubes with LED tubes or LED integrated fixtures. As long as the bulb is compatible with the existing fluorescent ballast in the fixture, you simply remove the fluorescent and replace it with the LED tube light.
Are T8 and T12 sockets the same?
The main difference between T8 and T12 tubes is the tube’s diameter. T12 tubes are 1.5″ in diameter while T8s are just one inch. All other things—socket sizes, lengths, distance between pins—are the same. T8 LED tubes won’t fall out if you try to install them in a T12 fixture—they’ll fit just fine.
Are LED better than fluorescent?
While fluorescent tubes are definitely more energy efficient than incandescent light bulbs and halogen lamps (which are just newer, brighter versions of incandescent bulbs) LEDs are even more energy efficient than fluorescents.
